(来学网)成熟乳钙的含量较稳定,一般含量为
  • A.
    (来学网)150mg/l
  • B.
    (来学网)200mg/l
  • C.
    (来学网)340mg/l
  • D.
    (来学网)500mg/l
  • E.
    (来学网)600mg/l